Delirium mirror with no delirium enemies, progress, or reward.

It was an "Augury" map with a delirium mirror and corruption.
Natural ones, the node was not in range of any tablets.

Entered the mirror at the start, and fully cleared the entire map.
There were no delirium enemies, with the map full cleared I'd made no delirium progress, and at the end I was just standing there, in the fog, which didn't seem to be going away.

This has also been happening to me the last two days. It's only in augury map I have noticed it. It has happened twice.

Enter mirror, fog starts, but no delerium enemies spawn, counter doesn't increase, and it doesn't end unless I manually end it. Regardless, because nothing spawns no drops occur.

I´ve also seen this on other maps, I remember it happening on Savannah.